Abstract

Twenty five to thirty specimens each from ten populations of Mus terricolor of the Terai and the Dooars regions of the Darjeeling foothills of West Bengal were cytogenetically analyzed using C-banding. Results showed intra- and inter- population variation of C-band positive heterochromatin ranging from very large blocks to minute amounts or even complete absence of heterochromatin. Large blocks of centromeric C-bands were found in Bidhan Nagar, Garidhura, Malbazar, Nagrakata and Maynaguri populations in most of the autosomes, while the rest of the populations had large blocks of C-bands on a few autosomes only. Such intra- and inter- population variation may be due to accumulation of C-positive heterochromatin, which has not got fixed homogeneously in all autosome pairs. X-chromosomes invariably possess a C-banded short arm a telomeric C-band at the distal end of the long arm in all populations. The entire Y-chromosome was C-band positive with slight population differences in staining intensity. The results suggest quantitative as well as qualitative variation of C-positive heterochromatin.

Addeddate

2025-03-16 15:44:09

Bhl_virtual_titleid

210879

Bhl_virtual_volume

v.7:no.2 (2013)

Call number

10_3897_compcytogen_v7i2_4136

Call-number

10_3897_compcytogen_v7i2_4136

Foldoutcount

0

Genre

article

Identifier

heterochromatin7baha

Identifier-ark

ark:/13960/s21f4w64dkc

Identifier-bib

10_3897_compcytogen_v7i2_4136

Identifier-doi

10.3897/compcytogen.v7i2.4136

Issue

2

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

1.0000

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

78

Page_number_module_version

1.0.5

Page_range

139-151

Pages

13

Pdf_degraded

invalid-jp2-headers

Pdf_module_version

0.0.25

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

Comparative Cytogenetics 7(2)

Year

2013

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